the answer is become a monk or a nun

as the one person said all happiness is a chemical reaction in the brain ......infact all emotional states can be linked to a set amount of chemicals in the brain

u seek what every man/women has looked for on this planet since the dawn of time...tho the answer is simple only some figure it out ........be happy with what u have ......look at a kid no fancy toys no gizmos ....put them outside and give them a stick and rock watch what happens every culture on this planet they are happy in the act of play

so as a adult u have 2 choices monk/nun or be happy with what u have
as for work if u do something u love u never work a day in your life it is more play .....so figure out what u love what makes u happy and see if u can find work in that area (that is the tricky part figuring out that part might mean u moving from everything u know to find work )

the monk/nun is the fall back sure fire way to find peace and happiness ......the simple fact u give it all up (i mean items and the rat race that is life) and the rest of life just in helping out and thinking